<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <!-- 准备好一个容器-->
    <div id="root">
        <div>你好，{{name}}</div>
        <div v-text="name"></div>
        <div v-text="str"></div>
    </div>

    <script type="text/javascript">
        Vue.config.productionTip = false //阻止 vue 在启动时生成生产提示。

        new Vue({
            el: '#root',
            data: {
                name: '张三',
                str: '<h3>你好啊！</h3>'
            }
        })
    </script>
</body>

</html>